arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2201.04968cs.LGcs.AI
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基于图的道路交通轮廓无传感器估计方法

A Graph-based Methodology for the Sensorless Estimation of Road Traffic Profiles

TECNALIA, Basque Research and Technology Alliance (BRTA)(TECNALIA,巴斯克研究与技术联盟);University of the Basque Country (UPV/EHU)(巴斯克大学)

Eric L. Manibardo, Ibai Laña, Esther Villar, Javier Del Ser

摘要:

交通预测模型依赖于需要感知、处理和存储的数据。这需要部署和维护交通传感基础设施,通常会导致无法承受的货币成本。感测位置的缺乏可以通过合成数据模拟来补充,这进一步降低了交通监控所需的经济投资。最常见的数据生成方法之一是根据模拟道路的数据分布生成类似真实的交通模式。相似交通道路的检测过程是这些系统的关键。然而,在不收集目标位置处的数据的情况下,没有流度量可以用于这种基于相似性的搜索。我们提出了一种方法来发现位置与可用的交通数据,通过检查拓扑特征。这些特征是从特定领域的知识中提取的,作为数字表示(嵌入)来比较不同的位置,并最终根据嵌入之间的相似性找到具有类似日常交通状况的道路。这种新的选择系统的性能进行检查和比较简单的流量估计方法。在找到一个类似的数据源,生成的方法被用来合成交通概况。根据感测到的道路处的交通行为的相似性,可以仅向生成方法馈送来自一条道路的数据。根据合成样本的精度分析了几种生成方法。最重要的是,这项工作旨在促进进一步的研究工作,以提高合成流量样本的质量,从而减少对传感基础设施的需求。

英文摘要:

Traffic forecasting models rely on data that needs to be sensed, processed, and stored. This requires the deployment and maintenance of traffic sensing infrastructure, often leading to unaffordable monetary costs. The lack of sensed locations can be complemented with synthetic data simulations that further lower the economical investment needed for traffic monitoring. One of the most common data generative approaches consists of producing real-like traffic patterns, according to data distributions from analogous roads. The process of detecting roads with similar traffic is the key point of these systems. However, without collecting data at the target location no flow metrics can be employed for this similarity-based search. We present a method to discover locations among those with available traffic data by inspecting topological features. These features are extracted from domain-specific knowledge as numerical representations (embeddings) to compare different locations and eventually find roads with analogous daily traffic profiles based on the similarity between embeddings. The performance of this novel selection system is examined and compared to simpler traffic estimation approaches. After finding a similar source of data, a generative method is used to synthesize traffic profiles. Depending on the resemblance of the traffic behavior at the sensed road, the generation method can be fed with data from one road only. Several generation approaches are analyzed in terms of the precision of the synthesized samples. Above all, this work intends to stimulate further research efforts towards enhancing the quality of synthetic traffic samples and thereby, reducing the need for sensing infrastructure.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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